Amazon Data Lifecycle Manager (DLM) is the correct choice because it is purpose-built to automate EBS snapshot lifecycle management with minimal configuration, allowing you to define custom schedules like hourly snapshots and retention policies such as 7 days directly on the volume. This service eliminates the need for custom scripts or Lambda functions by natively handling snapshot creation, retention, and deletion based on your policy rules. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your ability to match the right managed service to a common operational task, often contrasting DLM with AWS Backup or manual scripting—a common trap is overcomplicating the solution when DLM’s built-in scheduling and retention are sufficient. Remember the mnemonic: DLM Does Lifecycle Management, so for snapshot automation, DLM is your default.
SOA-C02 Reliability and Business Continuity Practice Question
This SOA-C02 practice question tests your understanding of reliability and business continuity. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company runs a critical web application on a single Amazon EC2 instance with a 100 GiB gp2 EBS volume. The SysOps administrator needs to ensure data durability by taking automated snapshots of the root volume every hour. The snapshots should be retained for 7 days. Which AWS service can be used to automate this task with minimal configuration?
DLM provides built-in automation for creating and retaining EBS snapshots according to a schedule, making it the ideal choice.
B
AWS Backup
Why wrong: AWS Backup can create EBS snapshots as part of a broader backup plan, but it is more complex than DLM for this specific single-volume scenario.
C
Amazon CloudWatch Events
Why wrong: CloudWatch Events can invoke a Lambda function to trigger snapshots, but requires custom code and does not natively manage retention.
D
AWS Systems Manager
Why wrong: Systems Manager automation can run scripts that create snapshots, but it is not a dedicated snapshot lifecycle management service.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon Data Lifecycle Manager (DLM)
Amazon Data Lifecycle Manager (DLM) is the correct choice because it is specifically designed to automate the creation, retention, and deletion of EBS snapshots with minimal configuration. It supports custom schedules (e.g., every hour) and retention policies (e.g., 7 days) directly on EBS volumes, making it ideal for this task without requiring additional scripting or infrastructure.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Amazon Data Lifecycle Manager (DLM)
Why this is correct
DLM provides built-in automation for creating and retaining EBS snapshots according to a schedule, making it the ideal choice.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Backup
Why it's wrong here
AWS Backup can create EBS snapshots as part of a broader backup plan, but it is more complex than DLM for this specific single-volume scenario.
✗
Amazon CloudWatch Events
Why it's wrong here
CloudWatch Events can invoke a Lambda function to trigger snapshots, but requires custom code and does not natively manage retention.
✗
AWS Systems Manager
Why it's wrong here
Systems Manager automation can run scripts that create snapshots, but it is not a dedicated snapshot lifecycle management service.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose AWS Backup because it is a centralized backup service, but they overlook that DLM is the simpler, purpose-built service for EBS snapshot lifecycle automation with minimal configuration, especially for a single volume and a straightforward retention policy.
Trap categories for this question
Scenario analysis trap
AWS Backup can create EBS snapshots as part of a broader backup plan, but it is more complex than DLM for this specific single-volume scenario.
Detailed technical explanation
How to think about this question
DLM uses resource tags to identify target EBS volumes and applies lifecycle policies that define snapshot schedules (using cron expressions) and retention rules (count or age-based). Under the hood, DLM leverages AWS Lambda and CloudWatch Events to orchestrate snapshot creation and deletion, but abstracts this complexity from the user. A subtle behavior is that DLM policies can be applied to both root and data volumes, and they support cross-region snapshot copy for disaster recovery, though not required here.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Reliability and Business Continuity — This question tests Reliability and Business Continuity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Data Lifecycle Manager (DLM) — Amazon Data Lifecycle Manager (DLM) is the correct choice because it is specifically designed to automate the creation, retention, and deletion of EBS snapshots with minimal configuration. It supports custom schedules (e.g., every hour) and retention policies (e.g., 7 days) directly on EBS volumes, making it ideal for this task without requiring additional scripting or infrastructure.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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